Dumping vehicle



Nov. 16, l1948.

E. B. sNEAl:`

DUIPING VEHICLE '7 Sheets-Sheet l Filed Ilarch 18, 1946 Q .....In du"vul Hh" hunanu mm *mm EDWIN SNE/1D INVENToR.

A Uomeys.

Nov. 16, 1948. E. B. sNEAD 2,454,101

DUMPING VEHICLE Filed March 18,'1946 7 SheetsFSheet 2 Auorneys A Nov.16, 194s. y E. B. SNEAD 2,454,101

DUMPING VEHICLE Filed March 18, 1946 '7 Sheets-Sheet 4 EDWIN B. SNEAD.

INVENTOR.

E. B. SNEAD DUIPING VEHICLE Nov. 16, 1948.

7 Sheets-Sheet 5 Filed latch 18,' 1946 E W/IV B. SNE/40.

' INVENTOR.

' BY ./Mf

Attorneys.

E. B. "SNEAD wurm@ vsuxcnn Nov. 16, 1948.

Filed arch 18, 194e '7 Sheets-Sheet 6 [0N/N B. SNEAD INVENTOR. BY ,a/?Meid? Attorneys E. B. SNEAD Duurruu VEHICLE Nov. 16, 1948.

'7 Shets-Shoot 7 Filed uarcn 18. 194e www! w//////////////M f AMaf/0%J1/J,

A Harney:

Patented Nov. 16,

UNITED STATE s PATENT. OFFICE Another object of the invention is toprovide Fig. is transverse sectional view looking toward the front endof the vehicle to show the an improved -vehicle adapted to contain aplurality of measured batches of material, whereby batches of materialof predetermined cubical content may be individually dumped at will.

A further object of the invention is to provide an improved dumpingvehicle having progressively movable transverse division members orpartitions which are mechanically propelled longitudinally of thevehicle body and controlled by fiuid hand-operated means, -whereby theoperator may dump one or more divisions simply by manipulating the handcontrol. l

Still another object of the invention is to pro vide a vehicle of thecharacter described having means for automatically stopping the progressof the dumping after each batch is dumped; together with means forautomatically stopping the operating means when all of the batches havebeen dumped so as to position the division members properly forreloading.

A further object of the invention is to provide improved means forreturning the partitions to loading position after the last batch ofmaterial has been dumped.

A construction designed to carry out the invention will be hereinafterdescribed together with other features of the invention. I

The invention will be more readily'understood from a reading oftheiollowing specication and by reference to the accompanying drawings,wherein an example of the invention is shown, and wherein:

, Fig. 1 is a. side elevation of a dumping vehicle constructed inaccordance with the invention, partly in elevation and partly insection,

Fig. 2 is a plan view of the same, -a portion of the cab being insection to illustrate the control mechanism,

Fig. 3 is an enlarged longitudinal sectional view of the rear portion of-the trailer,

Fig. 4 is a transverse sectional view between two oi lhe partitionslooking toward the rear of the tra er,

operating mechanism. the head plate being omitted,

Fig. 6 is a partial longitudinal vertical sectional view of the .forwardend of the trailer,

Fig. 'l is an isometric view of the rear portion of the trailer,

Fig. 8 is an elevation of the front side'of one of the partitions,

Fig. 9 is an end elevation of the same,

Fig. l0 is a sectional detail of one oi the chain mountings,

Fig. 11 is a diagrammatic-al view of the fluid control valve showing itin position for operating the dumping valve,

Fig. 12 is a similar view showing the valve in position for operatingthe return stop valve,

Fig. 13 is a transverse sectional view showing the dumping valve,

Fig. 14 is a view of the stop valve mechanism,

partly in plan and partly in section,

Fig. 15 is a transverse sectional view of the re# Y turn stop' valve,

Fig. 16 is a. longitudinal sectional view of the lower rear shaftmechanism,

Fig. 17 is a diagrammatical view of the iiuidpressure valve system, andl Fig. 18 is a sectional view of the partition stop.

In the drawings, the numeral Iii designates generally, a vehicle body ofthe truck trailer type. The body' is mounted on a longitudinal frame' i2which includes elongate side channel beams I3 and is supported at itsforward end on a turntable il which is carried on the platform I5 of asuitable motor truck i6. The details of the turntable and the motortruck are immaterial and adetailed description of the same is consideredunnecessary. The rear end of the trailer frame is carried on a subframei1 which is supported on a plurality/of ground wheels I8 by a springsuspension which will v be hereinafter described. Spaced transversebolsters i9 are fastened on the beams in any suitable manner andoverhang the same on each side.

The body i0 proper includes a plate-metal iloor 2li secured on thebolsters in any suitable manner. This iloor may be made in sections andany design may be employed so long as the upper surface of the oor issmooth and free from obstructions. The floor preferably extendstransversely jto the ends of the bolsters I9 and upright plate-metalsides 2i are suitably fastened on top of the floor, as by welding, andare offset inwardly from the sides of the iloor. These sides are bracedby injthe trailer frame.

clined metal standards22 suitably secured to the outer f ces of thesides and to the oor externally of said sides. So long as the innerfaces of the sides are continuous and free from obstructions,

materialis carried in the body, 'it is necessary.

that the inner faces of the oor and sides be smooth and unbroken so thatsuch material may -be readily moved or slid rearwardly in said body.

For the purpose of dividing the vehicle load into batches ofpre-determined cubical content, as well as for the purpose of movingsuch batches rearwardly, a plurality of upright division members orpartitions 23 extend transversely within the body at the properly spacedintervals. Each partition includesupon its front side, a bottom stripperplate 24 and upright side stripper plates 25, each of which is providedwith slots 26 for receiving bolts 21, whereby the stripper plates may beadjusted so as to have sliding engagement with the inner faces of thefloor 20 and the sides 2|. The partitions have their upper edgesterminating a substantial distance below the edges of the sides 2| as isclearly indicated in Figs. l, 3 and 7. The partitions 23 are preferablymade of heavy metallic plates but may be formed in any suitable manner.

For progressively moving the partitions, endless upper sprocket chains28 and endless bottom chains 2 9 are provided longitudinally of the bodycontiguous to the inner faces of the sides 2|; a central endless chain30 being disposed longitudinally of the body. The lower edge of eachpartition terminates above the lower edge of its bottom stripper plate24 and the lower ends of the plates 25 are cut off at 3| (Figs. ,4, 7and 8) so that the bottom chains 29 may rest upon the oor 20 and thepartitions may swing over said chains. Each bottom stripper plate isprovided with a notch 32 for receiving the central chain 30. The rearends of the chains 29 and 38 are carried by sprocket wheels 33 fastenedon a transverse shaft 34 (Figs. '1 and 16) journaled in roller bearingboxes 35 carried at the rear end of The forward ends of the chains 29are mounted on sprocket'wheels 36 fastened onv a drive shaft 31 at theforward end of the trailer frame. The drive shaft 31 is journaled inroller bearinghanger sleeves 38 suspended from the oor 20 which latteris provided with slots 39 through which the sprocket wheels 36 and thechains29 extend (Fig. 5). The forward end of the central chain 30 issupported on a sprocket wheel 40 fastened on the center of thedrivefshaftl 3.1 and extending through a slot 4| in the iioor 20 (Figs.5 and 6). The rear end of the central chain 30l is supported on asprocket wheel 42 fastened on the shaft 34 (Figs. 7 and 16).

The rear end of the iioor is provided with slots 43 through which thesprocket wheels 36 and 42, together with chains 29 and 30, extend. Therear ends of the upper chains 28 are supported on sprocket wheels 43which are journaled on stub shafts 44 mounted in bearing boxes 45carried by the body sides 2| (Figs. '1 and 10). The forward ends of thechains 28 are supported on sprocket wheels 48 fastened on a drive shaft46 having its ends journaled in bearingboxes 41 carried by the bodysides 2| at their forward ends (Figs. 5 and 6). In order to support andmaintain the upper and lower runs of the chains 28, tracks 49 aresecured to the inner faces of the sides 2| and are angular incross-section. The rear ends of (Figs. l, 2 and 6).

the tracks are curved toward each other (Fig. 3) so as not to interferewith the operation of attachments carried by the chains. The upper runsof the chains travel on the upper tracks 49, while the lower tracks 49are disposed immediately above the lower runs of the chains to preventupward displacement thereof.

The partitions 23 are carried by angular hangers 50 which are pivoted inadapters 5| carriedL by the chain 28. The hangers are preferably weldedto the rear sides of the partitions 23 (Figs. 3, 7 and 8). It will benoted that the partitions are notched at 50 to receive the hangers. Forholding the partitions in place during their rearward travel, the bottomchains 29 and 30 carry adapters 52 (Figs. 3 and 7) in which smallrollers 53 are gjournaled so as to bear against the lower front sides ofsaid partitions. Triangular bracket plates 54 are pivoted at theirforward lower corners on adapters 55 attached to the chains adjacent theadapters 52. At the rear corners of the plates 54, rollers 56 arejournaled, and these rollers bear upon the chains and act to support theplates in an upright position so that rollers '51 journaled at theirupper ends will bear against the rear sides of the partitions 23, as isbest shown in Fig. 3. YIt is obvious that when the chains are caused totravel, the rearmosi'I rollers 51 remain in engagement with thepartition 23 until the bracket plates 54 pass over the-center of theshaft 34 (Fig. 3) whereupon said plates are carried downwardly and outof the path of the partition so that the latter may swing outwardly asits pivoted hangers are carried rearwardly and upwardly by the chains28. A longitudinal angular track 58 is carried by the beams I3 of theframe I2 and this track is provided with a downwardly curved horn 59whereby the pivoted bracket plates are caused to ride onto the trackvand fold upwardly as is best shown in Fig. 3. The rollers 56 and 51 willride on the track while the lower runs of the chains 29 and 30 aretraveling forwardly. The partitions will swing to an approximatelyhorizontal position and ride on the upper runs of the top chains 28during the return travel of said chains.

It is obvious that various types of mechanism could be employed tooperate the endless chains because it is only necessary to revolve theshafts 31 and 46 to accomplish this result. I prefer to mount a powerplant on the forward end of the trailer body I8 which includes atransversely disposedA internal combustion engine 60 suitably secured onthe iioor 20 and shown in Figs. 1 and 2. The engine drives aconventional reduction gearing 6|, which, in turn, drives a sprocketwheelA 62. One end of an endless sprocket chain 63 is supported on thewheel 62 and has its opposite end engaging around a somewhat largersprocket wheel 64 which is fastened on a drive shaft 65 The drive shafthas one end journaled in a bearing box 66 carried by one of the sides 2|and extends through the upright walls of a gear housing 61, one of whichwalls carries a bearing box 68 in which the end of the shaft issupported. Within the gear box, pinions 69 are fastened on the driveshaft and mesh with lower gears 10 fastened on jack shafts 1|journaled'in bearing boxes 12 carried by the side walls of the housing61. Sprocket wheels 13 secured on the jack shafts support one end ofendless chains 14 which engage around sprocket wheels 15 fastened on thedrive shaft 31 on each side of the sprocket wheel 40.

The gears 10 drive .complementary gears 16 fastened on a jack shaft 11journaled in bearing boxes '18 carried by the housing 01. A sprocketwheel 19 fastened on the shaft 'I1 drives one end of an endless chain80, the opposite end of which is carried by `a sprocket; wheel 8|fastened on the drive shaft l46. .The endless chains 28, 28 and 80 aredriven by the shafts 81 and 48 which, in turn, are driven by the chains1| and 80. The sprocket wheel 62, which is driven by the reduction gear8|, is revolved in a clockwise direction (Fig. ,6) and by means of thechain 68, drives the sprocket wheel 64V and shaft 65 in a clockwisedirection. The shaft 85 drives the pinions 08 in a clockwise direction,whereby the gears 10 are driven counterclockwise, which causes the shaft1| to revolve in a counterclockwise direction. The shaft 1|l drives thechains 14, whereby the drive shaft 81 is driven in a counterclockwisedirection, which causes the upper runs of the chains 29 and 80 to travelrearwardly on the oor 20. l

The gears y,10 drive the gears 16 in a clockwise direction, whereby 'theshaft 46 is driven in a like direction by the chain 80 and this causesthe lower runs of the chains 28 to travel rearwardly hausts to theatmosphere. 'The valve head 00. is provided with a shaft |04 whichextends j through'the valve casing and is rigidly attached to the lowerend of a hand lever |00. By swinging this hand lever, the'valve head 86may be rotated to'ccntrol the flow of air with respect to the valves|00, |0| and|02 and the piston cylinder 9|. A lateral |00 extends fromthe pipe 96 to one end of the cylinder` 9|; while a lateral |01 extendsfrom the'pipe 91 to said cylinder.

When the valve head 85 is in the position` shown in Fig. 17, airsupplied by the pipe 98 will flow to the pipe 86, all other outletsbeing shut off. Air will thus be supplied to the valve |00, which isillustrated in detail in Fig. 14. The valve |00 is 'shown in Fig. 14 inits open positionJ and this valve includes a cylindrical casing |08having a screw-threaded nipple |09 at one end which is screwed into thehead plate |08. The nipple is internally screw-threaded to receive acollar complementary to the chains 29 and 30. It is important that thesprocketwheels 36, 40 and 48 be ldriven at the same rate of speed so asto.

' mediate the ends of a shifting lever 04 having its lower end pivotedin a bracket 85 secured onI the floor 20. The upper end of the lever 04is pivoted in a clevis 85 fastened on the rear e'nd of an operatingshaft 86 suitably supported adjacent the rear of the cab I6 which has awindow I6 through which the handle 81 of the shaft 86 may be reached. Byremoving this shaft longitudinally, the clutch may be thrown into any ofits positions. Between the bracket 85 and the pivot of the pitman 83, aclevis 88 is pivoted to the lever and attached to the forward end of apiston rod 89. The rear end of the piston rod is attached to a piston 90having a fluid-tight sliding i'lt in a cylinder 9|.

A fluid-pressure reservoir 92 is mounted in the rear of the cab I6(Figs. Zand 17) and a suitable pressure fluid, such as compressed air,is supplied to the reservoir in any suitable manner. An air supply pipe93 leads from the reservoir to a control valve 94 which is illustratedin detail in Figs. 11, 12 and 17. This valve includes a cylindricalcasing with a fiat valve head 95 rotat-` ably mounted therein and havingfluid-tight engagement at its end with the inner surface of the valvecasing. The'valve has five points of communication indicated by thepipes 96, 93, 91, 90 and 99, respectively. The pipes 96, 93, 91 and 98are spaced at 90 to each other; while the pipe 99 is located centrallybetween the pipes 96 and 98, all with respect totheir connection withthe interior of the valve.

The pipe 96 leads to a dumping stop valve |00 shown in Figs. '6 and 17and illustrated in detail in Fig. 14. The pipe 91 leads to a return stopvalve |0| (Figs. 6, 15 and 17), which valve is mounted in a transversehead plate |03 secured ||0 into the center of which the pipe 96 isscrewed. A winged valve head is slidably confined in the bore of thecasing and is forced against a concave'd seat |'|2 at the outer end ofthe casing by a coiled spring ||8. `The valve carries an axial plunger||4 which has a loose fit in an aperture ||6 lin the outer end of thevalve casing, the outer end of said plunger being rounded. VOne of theupper chains 28 carries an s upstanding abutment ||6 which engages theplunger and depresses the valve when the last batch has been dumped.

When the valve |00 is opened,.the air in the pipe 96 is exhausted to theatmosphere through the aperture H5, as is also the air trapped in the'cylinder 9|, behind the piston 90Jand the air trapped lin the pipe |06.The clutch lever 84 swings Ibetween two upright supports 1, as is best-shown in Fig. 17. Coiled springs ||8 dis;-

posed on each side of the lever have their outer ends attached to thesupports and their inner ends attached to the-lever. When the parts arein the position shown in Fig. 17, the left-hand spring 8 will beextended and consequently, when air pressure on the pistonis relieved,this spring will pull the member 84 to anintermedi- -ate position,whereby the clutch 82 will be moved to a neutral position and thetransmission of motion to the chains stopped.

When all of the batches have been dumped,

and it is desired to return the partitions 20 to loading position, itwill be necessary for the operator to swing the valve head 95 to theposition shown in Fig. 12, whereby fluid pressure will be supplied from4the pipe 93 to the pipe 91 and to the valve lol, which is normallyclosed. When this is done, air under pressure will be supplied to thecylinder 9| -by way of the pipe |01 which will move the piston 90 .tothe left-hand end of the-cylinder (Fig. 1'7) whereby the clutch 82 willbe shifted to a reverse position. This will cause the operatingmechanism to return the partitions to their loading position. The valve|0| is substantially a duplicate of the valve |00 with the exceptionthat the pipe v9'I is screwed into the plug ||0 and therefore, the samereference numerals will be used for the sake of simplicity. When theforemost partition 23 engages the plunger ||4 of the valve |0I, thevalve will be depressed or opened, thus permitting the air to bleed tothe atmosphere through the aperture 7 H5. This will release air from thepipes 91 and |01 whereby the springs i I8 will returnthe clutch to aneutral position.

For controlling the dumping, one of the upper chains 28 carriesupstanding adapter brackets ||9 (Figs. 1, 6. 7 and 13) which, in turn,carry rollers |20. These adapter brackets are spaced on the chain sothat when each partition forward of the rearmost partition reaches itsextreme rear position ready for dumping, said roller operates the valve|02. The valve |02 includes a valve block |2| secured to one of the sidewalls 2| and is provided with a vertical bore |22 having a port |23 intowhich the end of the pipe 99 screws. The upper end of the bore is closedby a screw-threaded plug |24, as is clearly shown in Fig. 13. A valvehead |25 has a. fluid-tight sliding t in the bore and is provided withan upstanding axial stem |26 which engages the plug to limit the upwardmovement of the valve head. A coiled spring |21 surrounds the stembetween the valve head and the plug and acts .to force said head downonto an annular seat |28 at the bottom of the bore. The valve headcarries a plunger |29 which has a sliding t in an aperture |30surrounded by the valve seat so that when the valve is in its depressedor opened position, as shown in Fig. 13, the air will be exhausted tothe atmosphere. The roller |20 engages the lower rounded end of theplunger and opens the valve.

In order to start the various chains traveling to unload the batches,the clutch lever 84 will have to be swung to the forward position shownin Fig. 17, and the hand lever |05 will have to be swung to the positionalso shown in this figure. However, since the valve will be open becausethe plunger thereof will still be in engagement with the foremostpartition 23, it is obvious that no airwill be trapped in the pipe |01.By swinging the hand lever to the position shown in Fig. l2, the pipes96 and 99 will be connected to the exhaust pipe 98, and thus, ifdesired, the clutch may be shifted by means'of the shaft 88 to start thechains moving. If the operator desires to use the air pressure to startthe chains,

material are contained between the partitions 23.

The foremost partition is in engagement with the plunger ||4 of valve`|0| whereby said valve is open to the atmosphere, the hand valve is inthe position shown in Fig. 11 and the clutch lever 84 is in a neutralposition, with the engine running. The valves |00 and |02 will beclosed. The clutch 82 can be engaged either by operating the shaft 86 orby swinging the lever |05. When the lever 84 is in a neutral positionthe piston 90 will -be intermediate the pipes |06 and |01.

If the hand lever |05 is swung to the position shown in Figs. 17 airwill bc supplied from the pipe 93 to the pipes` 96 and |06 which willdisplace the piston 90 to the left, the pipes |01 and 81 being open tothe atmosphere. This will shift the clutch into its forward position andstart the chains moving, whereby the partitions will be movedrearwardly. When the foremost partition 23 moves away from the plunger||4 of the valve itl. said valve will be closed. The chains continue tomove and the rearmost partition is swung rearwardly, as has beendescribed. so the following partition is pushing the batch from the rearend of the floor 20.

When the secon-d partition reaches its rear 4position the firstbatchwlll have been dumped and at this time the foremost roller |20 onthe chain 20 will engage and depress the plunger |29 of the dumpingvalve |02. In order to cause the valve |02 to function the operator willhave previously swung the hand valve from the position shown in Fig. 17to the dotted position shown in Fig. 12, whereby air will pass to thepipe 99 and thus when the dumping valve |02 is opened, air will passfrom the cylinder 9| by way of the pipe |06, which will permit thespring I8 to pull the lever 84 to a neutral position and stop motion ofthe chains.

'I'his operation will be repeated each time a batch is dumped. When thelast batch has been dumped and the lever |05 has been swung to theposition shown in Fig. 17, the parts will be in position forl operationof the valve |00, no roller |20 being provided for the last dump, andconsequently, the lever |05 may remain in the position shown in Fig.,17. When the last batch has been dumped the abutment ||6 will engageand depress the plunger ||4 of the return valve |00, whereby the pipes95 and |06 will bleed to the atmosphere, thus permitting the spring ||8to return the lever 84 to neutral and stop the chains. l

In order to reverse the travel of the chains and partitions the lever|05 is shifted to the position shown in Fig. l2, which will supply airfrom 'the pipe 83 to the pipes 91 and |01,\where by the piston will bemoved to the left (Fig. 17), thus shifting the clutch lever 84 to thereverse position. When the foremost partition strikes and engages theplunger ||4 of the return stop valve |0l, air in the pipes 91 and |01will be released to the atmosphere, whereby the clutch 82 will beshifted to a neutral position and the travel of the'chains stopped.

When each partition 25 swings downward into the rear end of the body, onthe return movement of the chains, said partition must be arrested sothat its lower edge will bey positioned between the rollers 53 and thebracket plates 54. To accomplish this result, spring stops |40 aremounted in the side walls 2| (Figs. 7 and 18). Each stop includes aflanged housing |4| having `its inner end inserted in an opening |42 inthe side 'wall and flush with the inner surface thereof. A stop ball |43seated in the inner end of the housing projects into the body in thepath of the partition. The ball is sustained by a coiled spring |44 inthe housing which is compressed by the head |45 of a screw-threadedplunger |46. The springs |44 are under sufllcient compression to causethe balls to resist the downward swing of .the partitions, but to yieldas the bracket plates move the partitions forwardly.

It is desirable to support the rear end of the trailer body so that onlythe central Wheels I8 will engage the road when the truck is unloadedand when the truck is loaded, the end wheels I8 will be moved downwardinto engagement with the road. While any suitable means may be employed,I prefer to secure the axle I8 of the -central wheels to the center ofelongated ellipfrom the subirame 9,454,101 i i f springs |3| arepivoted'in shackles lll-depending The rear` ends of the springs slide onshoes |33, also carried by said frame. Hangers |34 depend from thesubframe and rockers |35 are pivoted intermediate their ends in saidhangers. The outer ends of these rockers are secured to the inner endsof relatively elliptical springs IIB, the outer ends of which slide onshoes |31. The axles |8| of the end wheels are secured to the centralportions of the springs |36. The' inner ends of the rockers |35 haveloose connection with brackets |38 carried by the springs |3I. Thisarrangement permits the end wheels I8 to move up and down and at thesame time provides Aadequate spring suspension.

The foregoing description of the invention is explanatory thereof andvarious changes in the size, shape and materials, as well as inthe'details of the illustrated construction may be made, within `thescope of the appended claims, without departing from the spirit of theinvention.

What I claim and desire to secure by Letters Patent is:

1. A dumping ,vehicle including, a portable body having an imperforateiioor, endless chains carried by said body, spaced transverse partitionsacross the body in close proximity to the iioor A 6. A dumping vehicleas set forth in claimt and tracks extending longitudinally of the chains4 adjacent thereto. -'I. A dumping vehicle as set forth in claim -5 andstripper plates mounted on the edges oi the partitions.

8. A dumping vehicle including, an elongate y body, upper conveyorchains mounted longitudimovable longitudinally of said body carried bysaid chains, each partition extending continuously from one side of thebody to the opposite side thereof, whereby a batch 'of loose materialmay be wholly confined between adjacent partitions and movedprogressively rearwardly as preceding batches are discharged from thebody. means for driving the chains, and means for automatically stoppingtravel of the chains when a partition reaches a predetermined dumpingposition.

2. A dumping vehicle incliding, an elongate portable body having acontinuoussmooth imperforate floor and continuous smooth imperioratesides, endless chains carried by said body, spaced transverse partitionsextending continuously across the body and having bottom and side edgesin close proximity to the floor and sides of said body and movablelongitudinally of said body carried by said chains, means for drivingthe chains, and means for automatically stopping travel of the chainswhen a partition reaches a predetermined dumping position.

3. A dumping vehicle including, an elongate body, upper and lowerconveying means mounted longitudinally of th'eiioor and on elach side ofthe body, spacedtransversed partitions in the body carried by saidconveying means extending continuously across the body from one upperconveying means to the upper conveying means, whereby each partition iscarried by at least three conveying means, and means for operating theconveying means.

4. A dumping vehicle as set forth in claim 3, and means forautomatically stopping the conveying means when each partition reaches apre- .determined dumping position.

f the partitions, and retaining means carried by the lower chainsdetachably engaging the lower portions of the partitions.

nally of the bodylower conveyor chains mounted longitudinally of thebody, spaced transverse partitions movable longitudinally of the body,hangers carried by the upper chains attached to the partitions,retaining means carried by the lower chains receiving the lower portionsoi' the partitions, means for intermittently moving the chains to dumpmaterial confined, between the partitions, and means for'moving thechains in a reverse direction to returnA the partitions to loadingpositions.

9. A dumping vehicle including, an elongate body having a stationaryiioor and adapted to contain a plurality of separate batches of loosematerial, transverse upright partitions separating and confiningindividual batches, and means for moving said partitions step by steprearwardly in said body to slide saidv batches on the floor of the bodyand individually dump them from the body.

10. A dumping vehicle including, an elongate body having a floor andupright sides, endless upper conveyor chains carried within the body atthe sides thereof, an endless lower chain movable along the floor of thebody, partitions pivotally suspended from the upper chains anddetachably engaging the lower chain within the body, and means fortravelling said chains to move said partitions longitudinally of thebody.

11. A dumping vehicle including, ari elongate body, endless upperconveyor chains carried by the body, partitions pivotally suspended fromtheV chains in the body, means for travelling said chains to move saidpartitions longitudinally of the body, and travelling means along thebottom of the body engaging said partitions for holding them againstswinging,

12. A dumping vehicle including, an elongate body, endless upperconveyor chains carried by the body, partitions pivotally suspended fromthe chains in the body, 'means for travelling said chains to move saidpartitions longitudinally of the body, travelling means along the bottomof the body engaging said partitions for holding them against swinging,means on the body for stopping the travel of the chains, and meansoarried by one of said chains for engaging said stoppinglmeans.

13. A dumping vehicle including, an elongate A vbody having uprightsides'and a floor',u'pper and lower conveying means movablelongitudinally in the body, a plurality of spaced transverse partitionseach extending continuously across and Vpartitions to individually ydumpthe batches of material. Y

14. A dumping vehicle as set forth in claim 13, and tracks along theupper portions of the sides of the body for supporting the partitionsafter the batches of material are dumped.

15. A dumping vehicle including, an elongate body having upright sidesand a oor, upper and lower conveying means movable longitudinally in thebody, a plurality of spaced transverse partitions, each extendingcontinuously across and within the body to confine batches of materialtherebetween, hangers pivoted to the upper conveyor means and attachedto the upper ends of the partitions, retainers carried by the lowerconveying means and having pivoted members engaging the lower portionsof the partitions.

16. As a sub-combination in a dumping vehicle, an elongate body having afloor, an endless chain traveling above and below said floor, spacedmembers carried by and projecting from the chain, and brackets pivotedto the chain adjacent said members each having a roller for conning apartition against the adjacent member.

17. A dumping vehicle including, an elongate body having a iioor andupright sides, a plurality of spaced transverse partitions, endlesschains carried by the body and pivotally supporting the partitions,means for moving the chains to move thepartitionsrearwardly in the body'to dump material, and means for swinging the partitions toward ahorizontal position along the sides of the body after dumping material.

18. A dumping vehicle including, an elongate body having a oor andupright sides, upper endless chains mounted in the sides of the body, alower endless chain on the floor of the body, spaced partitions, pivotalconnections between the upper chains and the partitions, whereby saidpartitions carried uprightly in said body, projections on the lowerchain detachably engaging said partitions in the body, supports on thebody sides for the upper chains, whereby said partitions are swungtoward a horizontal position on said sides after dumping material fromthe body,- and means for intermittently moving said chains;

19. A dumping vehicle including, an elongate body having a iioor andupright sides, upper endless chains mounted on sides of the body, alower endless chain on the floor of the body, spaced partitions, pivotalconnections between the upper chains and the partitions, whereby saidpartitions are carried uprightly vin said body, prjections on the lowerchain detachably engaging said partitions in the body, supports on thebody sides for the upper chains, whereby said partitions are swungtoward a horizontal position on said sides after dumping material fromthe body, the means for movingthe chains including a clutch, a fluidactuator for the clutch, an operating valve connected with the uidactuator, and spaced devices mounted on one of the upper chains forengaging and actuating said valve.

20. In combination with a dumping vehicle body having endless chains andtransverse spaced partitions carried by the chains, control and drivingmechanism for the chains including, a motor, driving connections for thechains, a clutch connected with the motor and the driving connections, apressure iiuid actuator connected with the clutch, a hand operatorconnected with the iiuid actuator, pressure conductors on the bodyattached to the actuator, a dumping valve connected in one of theconductors, and means for supplying pressure uid to the conductors.

21. The combination set `forth in claim 20, with a stop valve connectedin another of said conductors for stopping movement oi' the chains inone direction, a return stop valve connected in still another of saidconductors for stopping movement of the chains in a reverse direction.

- EDWIN B. SNEAD.

` REFERENCES CITED The following references are of .record in thel le ofthis patent:

UNITED STATES PATENTS Number Name Date 397,997 Nevin Feb. 19, 18891,116,406 Fleischer Nov. 10, 1914 1,355,488 McKenney Oct. 12, 19201,924,927 Harm et al. Aug. 29, 1933` 1,987,262 MacEachen Jan. 8, 19352,258,988 LeLaurin Oct. 14, 1941 2,284,853 Wall June 2, 1942 2,400,502Hapman l May 21, 1946 FOREIGN PATENTS Number Country Date 527,916 GreatBritain Oct. 18, 1940 152,437 Switzerland Apr. 16, 1932

